Telescopic sight protector



Sifimn ROW 33*244; Oil 294889188 5R Nov. 15, 1949 E. H. HALVORSON 2,488,188 TELESCOPIC SIGHT PROTECTOR 4 Filed May 15, 1947 L/ Fig. 4.

Inventor Earl H. Halvorson Patented Nov. 15, 1949 SEARCH RDOM UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to a protector for a telescopic sight of the type commonly employed on firearms, transits, telescopes and the like and has for its primary object to protect the lenses from injury and against the collection of dirt and dust.

Another object is to preserve the visibility through the optical instrument while it is being transported and yet enable the telescope to be made instantly ready for use.

The above and other objects may be attained by employing this invention which embodies among its features a band adapted to be clamped about the telescope adjacent one end thereof, a cover pivoted to the band and adapted to be swung into a position to close the end of a telescope, said cover when being so closed protecting the lens adjacent the end of the telescope closed by the cover against injury, means yieldingly to urge the cover away from telescope closing position and a trigger actuated latch carried by the band to hold the cover in telescope closing position.

In the drawings:

Figure 1 is a perspective view of a telescopic gun sight showing this improved protector in place on the objective end thereof;

Figure 2 is a perspective view of the protector showing the cover in open position;

Figure 3 is a transverse sectional view through the telescope, illustrating the lens protector in place thereon, certain portions of the latter being shown in section;

Figure 4 is a side view of the lens protector showing it clamped about a fragment of the telescope;

Figure 5 is a longitudinal sectional view through the lens protector, illustrating it mounted on a fragment of a telescope barrel; and

Figure 6 is an end view of Figure 5.

Referring to the drawings in detail a conventional telescope designated generally I is equipped with conventional lenses mounted in a barrel I2 of conventional form.

My improved lens protector designated generally |3 comprises a band l4 Which is adapted to be clamped about the barrel |2 adjacent one end in any conventional manner. The band It is provided with a pair of spaced parallel ears which project outwardly therefrom and extend beyond the adjacent end of the barrel l2 as will be readily understood upon reference to Figures 2, 4 and 5. These ears are provided intermediate their ends with aligning openings I6 through which a clamping bolt |l extends in order to affect a clamping of the band about the barrel l2. Formed in the ears |5 adjacent their overhanging ends are align- 2 ing openings for the reception of a pivot bolt I8, and formed near the opposite ends of the ears l5 are aligned openings for the reception of asecond pivot bolt |9.

Pivotally supported between the ears |5 on the pivot bolt I8 is an arm 20 carrying adjacent its free end a cap 2|. This cap is provided with an annular flange 22 which when the device is in use normally overlies the adjacent end of the barrel l2 as will be readily understood upon reference to Figures 4 and 5. Coiled about the pivot pin I8 is a spring 23 one leg 24 of which bears against the lever arm 20, while the opposite leg 25 of the spring bears against the under edge of an ear l5 so as yieldingly to urge the cap 2| out of closing contact with the end of the barrel I2. Projecting rearwardly from the arm 20, in spaced relation to the barrel I2 is a keeper 26 having a hook 2'! at its free end and fitted in the cover 2| within the confines of the flange 22 is a sponge rubber cushion 21 which is adapted to co-operate with the end of the barrel |2 in forming a dust tight junction between the barrel and the cap.

Pivotally supported on the pivot pin I9 is a trigger actuated latch designated generally 28 which comprises a latch lever 29 carrying at one end a hook 30 which is adapted to engage the hook 21 to hold the cover 2| in closed position against the end of the barrel l2 and against movement under the influence of the spring 23. The opposite end of the arm 29 forms a trigger 3| by which the latch may easily and quickly be released when it is desired to use the telescope. A spring is coiled about the pivot pin |9 and one arm 32 thereof bears against the ears l5, while the opposite arm 33 of said spring bears against the trigger 3| so as yieldingly to urge the hook 30 into engagement with the hook 21 as will be readily understood upon reference to Figure 5.

In use the band is clamped about the barrel l2 adjacent the end of the telescope that is to be protected and the cap 2| swung into closed position over the end of the telescope as illustrated in the drawings. In this position the hook 30 on the latching trigger 28 will engage the hook 21 and hold the cover 2| against movement of the influence of the spring 23. When it is desired to use the telescope it is only necessary to exert pressure on the trigger 3| to swing it about its pivot l9 against the urge of the spring arms 32 and 33 so as to disengage the hook 30 from the hook 21. Upon disengagement of the hooks the spring 23 will swing the arm 20 and cover 2| about the axis of the pivot |8 into the position illustrated by the broken lines in Figure 4 so as to clear the sight through the telescope. In this way the lenses of the telescope may be protected against injury during transportation and yet by exerting pressure on the trigger 3| the telescope may be instantaneously uncovered ready for use.

While in the foregoing there has been shown and described the preferred embodiment of this invention it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

Having described the invention, what is claimed as new is:

A lens protector attachment for a telescopic gun sight or the like comprising a band demountably clamped about the sight adjacent one end thereof, a pair of spaced parallel ears projecting laterally from the band, the forward ends of the ears projecting beyond the end of the sight adjacent the band, a cover supported between the 20 Number 4 ears adjacent their forward ends to swing about an axis perpendicular to the gun sight into sight closing position, a spring between the ears yieldingly to urge the cover into open position relative to the sight, a keeper carried by the cover adjacent the ears, a trigger actuated latch supported between the ears to rock about an axis which lies in spaced parallel relation to the axis about which the cover swings and yielding means between the ears to hold the latch in engagement with the keeper releasably to hold the cover in closed position on the end of the sight.

EARL H. HALVORSON.

REFERENCES CITED The following references are of record in the file of this patent:

FOREIGN PATENTS Country Date 319,977 Germany 1920 

